title: Active tuberculosis (TB) with a negative interferon gamma release assay: failure of this test to rule out TB.
abstract: This report describes a patient with pulmonary tuberculosis in whom the interferon gamma release assay (IGRA) was negative at presentaion. It became positive following treatment. This illustrates that this test cannot be used to rule out tuberculosis, even in a low incidence country.
authors.forename: Michael
authors.initials: M
authors.lastname: Maze
authors.forename: Lutz
authors.initials: L
authors.lastname: Beckert
mesh_terms: D000328:Adult; D005188:False Negative Reactions; D006801:Humans; D059425:Interferon-gamma Release Tests; D008297:Male; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis* / Q000276:immunology